| From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>, Andrew Dunstan <andrew(at)dunslane(dot)net>, pgsql(at)j-davis(dot)com, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: new compiler warnings |
| Date: | 2011-10-19 03:45:48 |
| Message-ID: | 1318995948.10769.1.camel@vanquo.pezone.net |
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| Lists: | pgsql-hackers |
On tis, 2011-10-18 at 16:13 -0400, Tom Lane wrote:
> Peter Eisentraut <peter_e(at)gmx(dot)net> writes:
> > On tis, 2011-10-18 at 15:43 -0400, Tom Lane wrote:
> >> I don't actually see that warning on my Fedora 15 machine, with
> >> gcc version 4.6.1 20110908 (Red Hat 4.6.1-9) (GCC)
>
> > You get the "unused return value" warnings with -D_FORTIFY_SOURCE=2,
> > which has been the default on Ubuntu for years, and has been the default
> > on Debian for a few weeks (if you have the hardening-wrapper package
> > installed or running under dpkg-buildpackage).
>
> Ah-hah. That's also the default on Red Hat platforms, *if* you are
> building RPMs, and now that I think of it, I do see this warning when
> building RPMs. Seems weird that they'd have set it up that way though
> rather than with a -W switch.
There is a switch -Wunused-result, but it's on by default.
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